View Single Post
Old 10-07-2016, 08:06 AM   #57
Board Member
Broke4speed's Avatar
Join Date: Oct 2009
Location: Marionville, Ontario, Canada

Note: When making a 'quick' harness to get 12v to your MS1 v2.2 in order to update the firmware...the 12v 'in' is pin 28.

If you send 12v in on pin 26, you explode a trace, and possibly damage a few other things. Sigh.

So far everything checks out, but I need a replacement C21 cap, since I broke one of the legs removing it from the board to test. The voltage reg is fine, and the 40pin socket is powered up properly, but there currently is no VCC or Vref, probably due to the missing cap. Always double check your work.
1984 244/ AQ140A / M46
Broke4speed is offline   Reply With Quote